Do you often use a cellphone? Do you take the subway to school every day? These items make our modern life easier. But do you know how we should behave properly while using them? The following suggestions might be helpful. For cellphone users

    Keep your voice down when you make a phone call in public. Shouting on the phone may make others feel uncomfortable. And you'd better not use it during an appointment（约会）.

    Stop sending messages or playing games with your cellphone at a dinner or a party. It's a good time to communicate（交流）with your family and friends.

    Don't make or answer a call while driving. It is not only very dangerous for both you and your passengers but also against the law. For subway passengers

    You are supposed to wait in line while buying tickets and getting on the subway.

    You're not allowed to eat, drink or smoke on the subway train. The smell and noise may trouble others. It's our duty to keep the train clean and tidy. Besides, smoking is bad for health.

    You can't take pets on the train. As we all know, animals may spread diseases（传播疾病）and get the train dirty.

    You'd better not lie across the subway seats even if the train isn't crowded. Offering your seat to someone who needs it is regarded as good manners.

Titles：Some etiquette in modern life

    Can you imagine a world without a writing system for your language? It may be hard to picture it now, but a man named Sequoyah lived in such a world. Sequoyah was a member of a native American tribe(部落), the Cherokee. Cherokee people speak their own language, but for hundreds of years they did not have a system of writing. Without a writing system, the Cherokee had no newspapers or books before 1809.

    Sequoyah was probably born around the year 1770 and lived with his mother in a small village in the mountains of Tennessee. When he grew up, he became a blacksmith(铁匠). When he was doing business with those “English-speaking people”, he noticed that they used paper with marks to record their thoughts and ideas. Sequoyah called these pieces of paper with marks “talking leaves”. He began to wonder why people who spoke Cherokee did not have a way to write down their words.

    In 1809, Sequoyah decided to give the Cherokee their own “talking leaves”. At first he tried to make a different symbol for every word in the Cherokee language. But in that case, there would be so many symbols and too hard for people to remember, so he decided to make a picture for each syllable (音节). After much hard work, Sequoyah invented 85 symbols. In order to see whether it would work, he helped his six-year-old daughter Ayoka learn each symbol and found she could learn to read and write very quickly. Sequoyah's invention was a success!

    Before long, Sequoyah's writing system had spread far and wide. Cherokee people living in all different parts of the country learned to read and write. In 1825, Sequoyah's system was made the official written language for Cherokee people. To this day, Cherokee speakers still use Sequoyah's writing system. In some parts of the United States, you can see street signs and billboards written in both English and Cherokee. Sequoyah will always be remembered for his important contribution（贡献）to Cherokee people.

根据短文内容，回答下列问题。

Information Card

    Flowers have habits or ways of doing things, just as people have. Would you like to hear about some of these?

    There is one habit that almost all flowers have. They turn to the light. If plants are kept in a room, the flowers turn to the window. Some flowers shut up at night. It seems that they go to sleep. They open again in the morning. Tulips（郁金香）do this.

    One morning Lingling was looking at some tulips. When one of them opened, a bee flew out. He stayed too late last night, and so was shut up in the flower. He might be hard at work all day getting honey. He stopped to rest in the tulip, and was shut in when it closed. He had a fine bed that night. Lingling wondered if he slept any better than he would have slept in the hive（蜂巢）!

    Great white sharks in the Pacific Ocean. Wildebeest (角马)in Africa. Arctic terns(北极燕鸥) in the Atlantic. At first, these animals seem quite different. One swims, one walks, and the other flies. But they all have one thing in common, They all migrate(迁徙).

    Some migrating animals move to a place with a better temperature. Some go to find food or water. The groups travel as one, but during the trip, they face many different challenges.

    One challenge is distance. Some migrating animals take very long trips. For example, one great white shark swam from Australia to South Africa and back. In nine months, it swam about 20, 000 kilometers!

    Another challenge is finding enough food and water during the journey. For example, each Mali elephant needs over 200 liters of water each day. To get this, they need to go from one waterhole to another.

    Besides, migrating animals have to keep away from other animals that want to eat them. The zebra (斑马) has to avoid lions. Traveling as a group helps keep them safe. When one zebra is in trouble, the other members make a circle around it.

    By working as a group, migrating animals travel to live better lives.

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